Question

the sum of two numbers is 2170 if 2.5% of one number is equal to 4.5% of the other find the two number

Answer 1

a + b = 2170

a = 2170 - b

2.5 * a  =   4.5 *b

 100              100

2.5a  = 4.5b

2.5(2170 - b) = 4.5b

5425 - 2.5b  = 4.5b

7b = 5425

b = 5425/7 = 775

a = 2170 - 775 = 1395

Numbers are 1395 and 775